MCQOPTIONS
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MCQOPTIONS
| 1. |
What happens to the flow around the airfoil at upper critical Mach number? |
| A. | The flow around airfoil becomes subsonic |
| B. | The flow around airfoil becomes supersonic |
| C. | The flow around airfoil becomes sonic |
| D. | The flow around airfoil becomes hypersonic |
| Answer» C. The flow around airfoil becomes sonic | |